Teresa Matamoro, Mike Walmsley and Phil Holloway tell us about three key areas Euclid has shed a scientific light on in their Q1 data release today. These are active galactic nuclei, galaxy morphology and strong lensing.

Teresa: linkedin/teresamatamoro…

Mike: walmsley.dev

Phil: physics.ox.ac.uk/…

ESA details on the Q1 release: cosmos.esa.int/…

Euclid Consortium details on the Q1 release: euclid-ec.org…

Papers:

[2503.15326] Euclid Quick Data Release (Q1). The Strong Lensing Discovery Engine C – Finding lenses with machine learning

[2503.15324] Euclid Quick Data Release (Q1): The Strong Lensing Discovery Engine A — System overview and lens catalogue

[2503.15320] Euclid Quick Data Release (Q1). The active galaxies of Euclid

[2502.06505] Euclid: A complete Einstein ring in NGC 6505

[2404.02973] Scaling Laws for Galaxy Images